depends on your skill level. all ridable on a 150mm bike in the right hands - there's always a couple of riders on not fully blown out dh bikes. its pretty steep in places, but great fun. the best tracks in the uk imo.

Running Hans Dampf and (at least I think) I'm a fairly capable rider, I'm no Atherton but confident in most settings.

Ride a Pitch on 160mm Lyriks and 150mm RP23 so it can handle most things. I ride more AM and Trail Centres than anything else, but happy to hit Stiniog (blue/red, not done the black yet), Cockhill and other such DH Trails, there aren't many in our neck of the woods. That said the DH trails aren't anything massive or overly extreme!

Just concerned in case I find myself at a near vertical angle all day with 10ft gap jumps every 10yrds haha

it's mostly proper DH stuff - steep, rooty and a bit ghetto. there are some necky drops to contend with (i.e. not massive, but short run in/out) on the harder tracks, but mainly wheels on the ground. your bike will be fine. the FR line will entertain you if everything else gets a bit too much.